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N20-H12 vertical 201: 11.00-H14 horizontal 304: 12.65-H14 horizontal 201: 13.75-H14 horizontal 304: 15.62.
DN25-H12 vertical 201: 14.85-H14 horizontal 304: 16.83-H14 horizontal 201: 18.70-H14 horizontal 304: 21.45.
DN32-H12 vertical 201: 21.45-H14 horizontal 304: 25.30-H14 horizontal 201: 26.95-H14 horizontal 304: 30.80.
DN40-H12 vertical 201: 31.35-H14 horizontal 304: 36.30-H14 horizontal 201: 35.20-H14 horizontal 304: 39.60.
DN50-H12 vertical 201: 43.45-H14 horizontal 304: 50.60-H14 horizontal 201: 47.85-H14 horizontal 304: 54.45.
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Check valve refers to a valve body whose opening and closing parts are circular discs and rely on its own weight and medium pressure to generate actions to block the back flow of the medium.
Main use: Widely applicable to working conditions where the medium is water, steam, gas, corrosive medium, oil, medicine, etc. to prevent backflow.
Connection method: H12 and H14 are both internal threads.
